Hello,
I'm new to this mailing list, so forgive me if I break some etiquette
I have an academic problem. I mean that the target computer in not in
production and do not hold any essential data. I try to learn some
aspects of linux raid.
I have built a three disks raid1 on openSUSE 42.2. so far so good, all
worked perfectly
but later on I had no more use of the machine with as much disks, and
wanted to reclaim one disk. This one was in a esata dock.
At the moment I didn't found a way to make this cleanly (I found it it
too late in the linux raid wiki
https://raid.wiki.kernel.org/index.php/A_guide_to_mdadm#Removing_a_disk_from_an_array)
so, I stopped the computer and removed the dock.
The computer rebooted perfectly, but in slightly degraded mode (see below)
I don't find a way to tell the system that it have to forget the third
disk. May be it's not necessary.
Do you have a clue?
thanks
jdd
# mdadm --detail /dev/md127
/dev/md127:
Version : 1.0
Creation Time : Wed Dec 21 22:43:31 2016
Raid Level : raid1
Array Size : 976758592 (931.51 GiB 1000.20 GB)
Used Dev Size : 976758592 (931.51 GiB 1000.20 GB)
Raid Devices : 3
Total Devices : 2
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Mon May 1 15:29:48 2017
State : clean, degraded
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Name : any:jdd-raid
UUID : 4d57c009:5d7fc724:07376d9a:8ecb39a2
Events : 9592
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
- 0 0 2 removed
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